package com.lrs.java.j2se_base.thread;
public class TestSync implements Runnable {
  Timer timer = new Timer();
  public static void main(String[] args) {
    TestSync test = new TestSync();
    Thread t1 = new Thread(test);
    Thread t2 = new Thread(test);
    t1.setName("t1"); 
    t2.setName("t2");
    t1.start(); 
    t2.start();
  }
  public void run(){
    timer.add(Thread.currentThread().getName());
  }
}

class Timer{
  private static int num = 0;
  public synchronized void add(String name){ 
  	//synchronized (this) {
		num++;
		try {
			Thread.sleep(100);
		} catch (InterruptedException e) {
		}
		System.out.println(name + ", 你是第" + num + "个使用timer的线程");
	  //}
  }
}